ACPI: Fix wrong parameter passed to memblock_reserve

Commit 53aac44 (ACPI: Store valid ACPI tables passed via early initrd
in reserved memblock areas) introduced acpi_initrd_override() that
passes a wrong value as the second argument to memblock_reserve().

Namely, the second argument of memblock_reserve() is the size of the
region, not the address of the top of it, so make
acpi_initrd_override() pass the size in there as appropriate.

[rjw: Changelog]
Signed-off-by: Wang YanQing <udknight@gmail.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Cc: 3.8+ <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 4d31748faca3d9f05014a4c662d76e11abc6bd7a..e72186340fec50212f5da151a1e7137dde31d019 100644 (file)
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -641,7 +641,7 @@ void __init acpi_initrd_override(void *data, size_t size)
         * Both memblock_reserve and e820_add_region (via arch_reserve_mem_area)
         * works fine.
         */
-       memblock_reserve(acpi_tables_addr, acpi_tables_addr + all_tables_size);
+       memblock_reserve(acpi_tables_addr, all_tables_size);
        arch_reserve_mem_area(acpi_tables_addr, all_tables_size);
 
        p = early_ioremap(acpi_tables_addr, all_tables_size);